Some things are kept hidden for a reason, some secrets best left buried. After learning about an abandoned well linked to a local legend and unsolved mystery long forgotten, Dipper and Mabel decide to look for it. But something goes horribly wrong. When Mabel's life and soul is threatened by a dark entity, Dipper must race against time to save her before she's lost forever.

Despite a few setbacks involving mild amnesia, and the occasional nightmare after defeating Bill, Mabel's having a pretty amazing summer surrounded by family, friends and fun. But soon she starts seeing things and hearing things that has her question the world around her. AU post "Dipper and Mabel VS the Future"

SPOILERS for "Dipper and Mabel VS the Future". In the aftermath of everything that has happened, Dipper is determined to find his sister and stop Bill. Meanwhile he begins to have his doubts about Ford and suffers a devastating loss. Is there any hope now for a future? Is all truly what it seems? Can they defeat Bill and save the world? And what about Mabel?

Being trapped in a cave with his injured sister and a vicious creature outside hunting them was not how Dipper wanted to spend their birthday. He just wanted one last adventure before the summer was over and they had to go home, he didn't want it to be their LAST. He and Mabel just have to survive the night, but that's easier said then done.